(en) Glenda J. Jackson, Ventura, Arcadia Publishing, (lire en ligne), p. 12
hathitrust.org
catalog.hathitrust.org
(en) Eugene Bolton, Fray Juan Crespi,
missionary explorer on the Pacific coast, 1769-1774, Berkeley, Californie, University of California Press, (lire en ligne), p. 159-160
latimes.com
(en) Jane Hulse, « JAUNTS : Ventura Tour Takes Mystery Out of History : During two-hour walk, guide conveys flavor of 1920s during oil boom and livens his talk with anecdotes of those days. », Los Angeles Times, (lire en ligne)